2vuq

Crystal structure of a human tRNAGly acceptor stem microhelix (derived from the gene sequence DG9990) at 1.18 Angstroem resolution

spinqualitylabelsall models 2vuq, resolution 1.18Å Show:Asymmetric Unit Biological Assembly Drag the structure with the mouse to rotate   Export Animated Image   Print3D Structural highlights 2vuq is a 2 chain structure. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance. Resources: FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT Publication Abstract from PubMed The tRNA(Gly)/Glycyl-tRNA synthetase system belongs to the so called 'class II' in which tRNA identity elements consist of relative few and simple motifs, as compared to 'class I' where the tRNA determinants are more complicated and spread over different parts of the tRNA, mostly including the anticodon. The determinants from 'class II' although, are located in the aminoacyl stem and sometimes include the discriminator base. There exist predominant structure differences for the Glycyl-tRNA-synthetases and for the tRNA(Gly) identity elements comparing eucaryotic/archaebacterial and eubacterial systems. We focus on comparative X-ray structure analysis of tRNA(Gly) acceptor stem microhelices from different organisms. Here, we report the X-ray structure of the human tRNA(Gly) microhelix isoacceptor G9990 at 1.18A resolution. Superposition experiments to another human tRNA(Gly) microhelix and a detailed comparison of the RNA hydration patterns show a great number of water molecules with identical positions in both RNAs. This is the first structure comparison of hydration layers from two isoacceptor tRNA microhelices with a naturally occurring base pair exchange. Crystal structure of the human tRNAGly microhelix isoacceptor G9990 at 1.18A resolution.,Eichert A, Perbandt M, Schreiber A, Furste JP, Betzel C, Erdmann VA, Forster C Biochem Biophys Res Commun. 2009 Mar 13;380(3):503-7. Epub 2009 Jan 27. PMID:19284994 From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.

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